WO2020242459A1 - Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol - Google Patents

Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol Download PDF

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Publication number
WO2020242459A1
WO2020242459A1 PCT/US2019/034218 US2019034218W WO2020242459A1 WO 2020242459 A1 WO2020242459 A1 WO 2020242459A1 US 2019034218 W US2019034218 W US 2019034218W WO 2020242459 A1 WO2020242459 A1 WO 2020242459A1
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
immiscible
immiscible liquid
separator
weir
Prior art date
Application number
PCT/US2019/034218
Other languages
English (en)
Inventor
John C. Sowerby
Giles S. Sowerby
Original Assignee
Goslyn General, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goslyn General, Llc filed Critical Goslyn General, Llc
Priority to PCT/US2019/034218 priority Critical patent/WO2020242459A1/fr
Priority to EP19930580.6A priority patent/EP3976217A4/fr
Priority to AU2019448170A priority patent/AU2019448170A1/en
Priority to CN201980098826.7A priority patent/CN114173900A/zh
Publication of WO2020242459A1 publication Critical patent/WO2020242459A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G33/00—Dewatering or demulsification of hydrocarbon oils
    • C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/02—Fluid flow conditions
    • C02F2301/028—Tortuous

Definitions

  • the present invention relates in general to liquid separators, and more particularly to water/oil separation apparatus that can accommodate a wide range of effluent flows and be buried in the ground to also separate the effluent from floor drains and floor mounted mop sinks.
  • waste water could be, for example, discharged from a washing device for cleaning dinnerware and cooking utensils, from floor drains and mop sinks. If the greases and fats solidify in the sewage system, a blockage can occur which is expensive to remediate.
  • Some floor-mounted immiscible liquid separators are not adapted for treating effluent liquids from such equipment.
  • These liquid separators are often equipped with ball-type float valves that require daily cleaning, and thus such type of separators cannot be used as in-ground separators, as it would be very troublesome to gain daily access to the ball-type float valves and clean them.
  • this type of immiscible liquid separator requires frequent internal access to remove the particulate matter that has settled to the bottom of the separators, thus requiring easy access to the internal areas of the separators.
  • U.S. Pat. No. 7,297,284 by Owen et al. discloses various embodiments of immiscible liquid separators. Described therein are parameters that are important when considering the construction of a separator to separate the oil content from the water content of a waste liquid.
  • Typical immiscible liquid separators are constructed with a separation chamber of sufficient size to allow the waste liquid to separate therein, with the oil floating on top of the water. As more waste liquid is added to the separator, the floating oil rises and overflows via an oil outlet into an oil reservoir.
  • the previously separated water flows from the separation chamber under a separator plate into a water chamber where, when the level is sufficiently high, the separated water overflows over a fixed height linear weir and out of the separator. The linear weir spans the distance between the opposite sides of the separator enclosure.
  • the chamber can be sized to ensure that separation is completed before the heavier liquid (water) flows under the separation plate to the separated water chamber.
  • a ball-type float valve is employed to prevent surges of separated water from flowing upwardly into the oil reservoir. The disadvantage of using a ball-type float valve is that it often requires daily maintenance to clean it and prevent floating deposits from allowing water to pass with the oil through the valve.
  • the weir is often a planar plate that extends laterally between sidewalls of the separator.
  • the separated water flows over the weir and exits the separator and is drained away via the water drainage system.
  • the separated water flows over the linear weir much like excess flood water flows over a spillway, dam or levy.
  • Immiscible liquid separators can be employed in restaurants, and the like, and are often mounted on the floor under the sink or wash basin drains. The separated oil must be watched carefully so that the reservoir does not become full or overflow. In the event that the facility produces a substantial amount of immiscible waste liquids, then either the oil reservoir of the separator must be drained more often, or a larger oil reservoir must be provided.
  • a separator for separating immiscible liquids, where the separator includes an enclosure having an inlet for coupling an immiscible influent mixture into the enclosure.
  • the immiscible influent mixture includes a first immiscible liquid having a given density, and a second immiscible liquid having a density greater than the density of the first immiscible liquid.
  • the enclosure holds the immiscible influent mixture for a sufficient time so that the first immiscible liquid rises and floats on top of the second immiscible liquid.
  • a liquid discharge outlet of the enclosure couples the second immiscible liquid out of the enclosure.
  • an upper long H-shaped or otherwise irregular shaped, continuous open top weir connected to a lower smaller, vertical, rectangular discharge stack with an open bottom that is immersed in the second immiscible liquid.
  • the second immiscible liquid flows over the H-shaped open top of the weir and to the second liquid discharge outlet.
  • the discharge stack has an open top.
  • the first immiscible liquid flows over another much shorter weir that is set at a calculated distance above the long-length weir over which the second liquid flows.
  • a separator for separating immiscible liquids comprising water and oil.
  • the separator includes an enclosure having a waste liquid inlet, an oil discharge outlet and a water discharge outlet.
  • the enclosure holds the waste liquid input thereto via the waste liquid inlet until the waste liquid separates into an oil content and a water content, with the water content settling to a bottom of the enclosure and the oil content floating on the water content.
  • the enclosure has a top that slants upwardly from one side of the separating enclosure to the other so the separated oil is directed to the rectangular oil discharge weir.
  • a further embodiment of the invention includes locating two rectangular open top vents along the top of the slanted top of the separating enclosure so that any entrained air can escape and not cause burping at the oil overflow weir.
  • a separator for separating immiscible liquids which includes an enclosure having an influent inlet located at a frontal side thereof for coupling an immiscible mixture into the enclosure, where the immiscible mixture includes a first immiscible liquid having a given density and a second immiscible liquid having a density greater than the density of the first immiscible liquid.
  • the enclosure has a frontal compartment for receiving the immiscible mixture and a separation compartment for holding the immiscible mixture for a sufficient time that the first immiscible liquid floats on top of the second immiscible liquid.
  • a discharge outlet is located at an outlet side of the enclosure for coupling the second immiscible liquid out of the enclosure.
  • the outlet side is located on a side of the enclosure opposite the frontal side, whereby the second immiscible liquid flows through the enclosure from the frontal side to the outlet side.
  • the enclosure does not have an outlet for discharging the first immiscible liquid out of the enclosure in response to the influent being coupled into the enclosure.
  • a storage tank is located in the enclosure for storing the first immiscible liquid until removed by external means.
  • a weir has a long open top that has a circumferential rim, and the vertical discharge stack has an open bottom immersed in the second immiscible liquid of the separation compartment.
  • the second immiscible liquid flows over the circumferential open top rim of the weir and to the discharge outlet.
  • FIG. 1 is a top view of an immiscible liquid separator system constructed according to an embodiment of the invention
  • FIG. 2 is a side view of the immiscible liquid separator system of FIG. 1;
  • FIG. 3 is a left inlet side view of the immiscible liquid separator system of FIG. 1;
  • FIG. 4 is right outlet side view of the immiscible liquid separator system of FIG. 1.
  • the illustrated immiscible liquid separator 10 adapted for accommodating a wide range of liquid flows.
  • the illustrated immiscible liquid separator unit 10 constructed according to one embodiment of the invention, is adapted for separating immiscible liquids, such as oils and water commonly produced in food processing facilities.
  • the immiscible liquid separator 10 comprises an enclosure 12 having a generally rectangular top 14 covered by a lid (not shown).
  • the lid is a shoe-box type lid sealed to the rim of the open top by a neoprene seal.
  • the lid can be fastened to the enclosure 12 by clips or other quick release fasteners.
  • the lid can be periodically removed to gain access to an oil reservoir to remove the oil by suctioning it out of the oil reservoir.
  • the top is constructed with a flange (not shown) therearound to provide an interface with the lid.
  • the lid is constructed with peripheral down-turned flange.
  • the immiscible liquid separator 10 also includes a planar bottom 16.
  • the various side, bottom and lids can be constructed of stainless steel, synthetic or other suitable materials.
  • the immiscible liquid separator 10 is generally a rectangular box type of enclosure that is adapted for being installed in the ground.
  • the immiscible liquid separator 10 will be constructed to process a large flow of a mixture of waste water and waste oils and grease, and thus the separator will be capable of storing up to about 50 gallons (189.27 liter) of oil. As such, the immiscible liquid separator 10 can be buried in the ground so that it does not require any working space on the floor of a restaurant facility, or the like. It is further contemplated that the oil will be removed from an oil reservoir of the separator 10 by pumping the same out of the unit 10 by a pumper truck, or the like.
  • the immiscible liquid separator 10 is constructed with a slanted floor 18 that slants upwardly from the left side (viewer facing the front of the unit 10 from the waste liquid inlet 20, as in Fig. 3) to the right side of the unit 10.
  • the enclosure 12 includes a frontal inlet compartment 22, a middle separation compartment 24, and an oil reservoir 26.
  • the frontal compartment 22 is constructed with an influent inlet pipe 20 for allowing kitchen sink wastes to be drained into the frontal compartment 22.
  • the frontal compartment 22 is separated from the middle separation compartment 24 by a vertical wall 28 that is constructed with a section having perforations 30.
  • the perforations 30 are of a desired size and density, and are formed in only a portion of the vertical wall 28 to provide a controlled flow of the influent from the frontal compartment 22 to the intermediate separation compartment 24.
  • the separated water overflows from an H-shaped weir 32 onto an elevated floor 33 and out of a water discharge outlet pipe 34.
  • the separated water discharged from the immiscible liquid separator 10 can be coupled via drainage pipes to the waste water drainage system, such as a municipal sewer pipe.
  • the frontal compartment 22 serves to separate the particulate matter from the liquid content of the influent.
  • the particulate matter thus settles to the bottom of the inlet frontal compartment 22 and can be removed periodically by vacuum techniques.
  • the mixture of waste oil and water remains in the intermediate separation compartment 24 for a time sufficient to allow the immiscible liquids to separate in a natural manner.
  • the waste oils of the influent mixture have a general specific gravity that is less than that of the waste water. Accordingly, the immiscible liquid with a lower specific gravity (oil) will float on top of the immiscible liquid having a higher specific gravity (water). In other words, the separated oils will gravitate upwardly and eventually float on top of the separated water in the intermediate separation compartment 24.
  • the volume of the enclosure 12 is related to the rate at which waste liquids can be separated into the oil content and the water content.
  • a heater can be optionally located in the immiscible liquid separator 10 in contact with the oil layer to heat such liquid layer and assure that any fat or grease is maintained in a liquefied state.
  • the intermediate separation compartment 24 thus contains the lower layer of separated water and an upper layer of separated oil. Any initial air that is in the enclosure is pushed out (by the incoming waste liquid) through one or both breather tubes 36a and 36b. Air bubbles entrained in the influent can thus escape from the immiscible liquid separator 10 via the breather tubes 36a and 36b.
  • the separated water in separation compartment 24 rises. The rising water in the separation compartment 24 causes the overlying oil layer to be pushed upwardly along the slanted floor 18 toward the oil overflow 38.
  • the temporary upward pressure on the oil layer in the separation compartment 24 forces it upwardly and over the oil overflow 38 and into the large oil reservoir 26.
  • the oil reservoir 26 can hold upwardly of 50 gallons (189.27 liter) and thus need not be pumped down weekly. Because the separated oil is contained in the enclosure 12 of the immiscible liquid separator 10, there is no oil outlet to allow excess oil to be discharged from the separator enclosure 12 each time an additional amount of the immiscible liquid mixture is drained into the frontal compartment 22.
  • the immiscible liquid separator 10 does not require an oil valve, whereas many other immiscible liquid separators do require an oil valve, such as a ball- type valve.
  • the ball-type oil valves required in many prior art separators prevent separated water from entering the separated oil section of the separator 10. When an oil valve is not required, the cost of the unit and the maintenance thereon are both reduced.
  • the influent inlet 20 is located on the frontal side of the separator unit 10 at an elevation higher than the separated water outlet 34.
  • the separated water in the separation compartment 24 which causes it to rise upwardly in a square water baffle tube 40.
  • the bottom opening 42 of the water baffle tube 40 is located low in the separation compartment 24, well in the bottom portion of the separated water. This assures that no overlying separated oil will enter into the bottom opening 42 of the water baffle tube 40.
  • the separated water escapes from the separation chamber 24 up the water baffle tube 40 and over the irregular-shaped weir 32.
  • the water baffle tube 40 and the weir 32 are constructed to accommodate a wide range of water flow rates, e.g., about 10 to 50 gallons (37.85 - 189.27 liter) per minute.
  • the top opening in the weir 32 is elongated due to its irregular shape to accommodate a large volume of separated water.
  • the shape of the weir 32 is H-shaped so that the circumference thereof is greater than either a square, round or oval shaped weir.
  • H-shaped weir 32 While the H-shaped weir 32 has a substantial circumferential length, it can still fit within the housing 12 of the immiscible liquid separator 10 due to its small footprint, and thus does not require a lot of area.
  • the H-shaped weir 32 is somewhat serpentine in shape, in that it has portions that traverse opposite directions to thereby lengthen the overall length of the rim of the weir 32.
  • the immiscible liquid separator 10 is constructed so that the liquid processed proceeds from the frontal part of the separator 10, via the liquid inlet 20, through the length of the separator 10 to the separated water outlet 34 which is located on the opposite end of the separator 10. While most separators of such type include a linear weir that is located cross-wise in the separator, the present immiscible liquid separator 10 includes an irregular-shaped weir outlet having a rim with a circumference. The circumferential weir 32 allows a higher volume of separated water to be processed and expelled from the separator 10.
  • the separated water can flow over any portion of the circumferential weir 32 and thus accommodate a higher volume than a linear weir.
  • the conventional linear weir is limited to the width of the separator, and allows the separated water to flow generally only in one direction over the top rim of the linear weir.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Removal Of Floating Material (AREA)

Abstract

Un séparateur de liquide non miscible à grande capacité est conçu pour être placé dans le sol, plutôt que sous les éviers d'installations de traitement d'aliments. Le séparateur de liquide a un grand compartiment d'huile qui peut être aspiré sous vide pour vider son contenu. De grands volumes de l'influent liquide non miscible peuvent être traités sans l'utilisation d'une valve de type à bille. Un déversoir de grande circonférence permet à un grand volume d'eaux usées séparées de déborder du système d'égout. Le déversoir peut être en forme de H pour fournir une grande circonférence et ainsi s'adapter à de grands écoulements d'eaux usées séparés sur celui-ci.
PCT/US2019/034218 2019-05-28 2019-05-28 Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol WO2020242459A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/US2019/034218 WO2020242459A1 (fr) 2019-05-28 2019-05-28 Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol
EP19930580.6A EP3976217A4 (fr) 2019-05-28 2019-05-28 Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol
AU2019448170A AU2019448170A1 (en) 2019-05-28 2019-05-28 Variable flow immiscible liquid separator for in-ground applications
CN201980098826.7A CN114173900A (zh) 2019-05-28 2019-05-28 用于地下应用的可变流量不混溶液体分离器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2019/034218 WO2020242459A1 (fr) 2019-05-28 2019-05-28 Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol

Publications (1)

Publication Number Publication Date
WO2020242459A1 true WO2020242459A1 (fr) 2020-12-03

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PCT/US2019/034218 WO2020242459A1 (fr) 2019-05-28 2019-05-28 Séparateur de liquide non miscible à écoulement variable pour des applications dans le sol

Country Status (4)

Country Link
EP (1) EP3976217A4 (fr)
CN (1) CN114173900A (fr)
AU (1) AU2019448170A1 (fr)
WO (1) WO2020242459A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1200951A (en) * 1916-01-19 1916-10-10 Kelly Separator Company Separator.
GB1132339A (en) * 1965-04-07 1968-10-30 Beck Koller & Co England Ltd An apparatus for the continuous separation of two liquids of different specific gravity
US3925204A (en) * 1972-03-30 1975-12-09 Exxon Research Engineering Co Liquid separating equipment
US20040035784A1 (en) * 2002-08-21 2004-02-26 Kozak Andrew F. System and method for separating immiscible fluids
US10300406B1 (en) * 2016-10-06 2019-05-28 Gosyln General, Llc Variable flow immiscible liquid separator for in-ground applications

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6517715B1 (en) * 1999-11-12 2003-02-11 Thermaco, Inc. Readily serviceable separator unit with a focusing plate
JP2010247144A (ja) * 2009-03-27 2010-11-04 Tokyo Electric Power Co Inc:The 油分離槽
AU2010336344B2 (en) * 2009-12-24 2013-10-03 Goslyn, L.P. Separator for low discharge applications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1200951A (en) * 1916-01-19 1916-10-10 Kelly Separator Company Separator.
GB1132339A (en) * 1965-04-07 1968-10-30 Beck Koller & Co England Ltd An apparatus for the continuous separation of two liquids of different specific gravity
US3925204A (en) * 1972-03-30 1975-12-09 Exxon Research Engineering Co Liquid separating equipment
US20040035784A1 (en) * 2002-08-21 2004-02-26 Kozak Andrew F. System and method for separating immiscible fluids
US10300406B1 (en) * 2016-10-06 2019-05-28 Gosyln General, Llc Variable flow immiscible liquid separator for in-ground applications

Also Published As

Publication number Publication date
EP3976217A4 (fr) 2023-01-18
EP3976217A1 (fr) 2022-04-06
CN114173900A (zh) 2022-03-11
AU2019448170A1 (en) 2022-01-20

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